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authorBorislav Petkov <bp@suse.de>2018-09-27 18:36:24 +0200
committerBorislav Petkov <bp@suse.de>2018-09-27 18:36:24 +0200
commitd913e8966a8f4b259dd6f11f0c334d865cf9d3aa (patch)
tree0b354028600f61001317426da875edc50685d36d /drivers/xen/manage.c
parent6b58859419554fb824e09cfdd73151a195473cbc (diff)
parentc9661c1e80b609cd038db7c908e061f0535804ef (diff)
Merge branch 'tip-x86-hygon' into edac-for-4.20
... to pick up a dependent commit and share it with the tip tree, branch tip:x86/cpu. Signed-off-by: Borislav Petkov <bp@suse.de>
Diffstat (limited to 'drivers/xen/manage.c')
-rw-r--r--drivers/xen/manage.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/xen/manage.c b/drivers/xen/manage.c
index c93d8ef8df34..5bb01a62f214 100644
--- a/drivers/xen/manage.c
+++ b/drivers/xen/manage.c
@@ -280,9 +280,11 @@ static void sysrq_handler(struct xenbus_watch *watch, const char *path,
/*
* The Xenstore watch fires directly after registering it and
* after a suspend/resume cycle. So ENOENT is no error but
- * might happen in those cases.
+ * might happen in those cases. ERANGE is observed when we get
+ * an empty value (''), this happens when we acknowledge the
+ * request by writing '\0' below.
*/
- if (err != -ENOENT)
+ if (err != -ENOENT && err != -ERANGE)
pr_err("Error %d reading sysrq code in control/sysrq\n",
err);
xenbus_transaction_end(xbt, 1);